Quantifying Geochemical Processes of Arsenic Mobility in Groundwater From an Inland Basin Using a Reactive Transport Model

2020 ◽  
Vol 56 (2) ◽  
Author(s):  
Z.P. Gao ◽  
Y.F. Jia ◽  
H.M. Guo ◽  
D. Zhang ◽  
B. Zhao
Keyword(s):  
Reactive Transport ◽  
Transport Model ◽  
Geochemical Processes ◽  
Reactive Transport Model ◽  
Arsenic Mobility

Process-Based Reactive Transport Model To Quantify Arsenic Mobility during Aquifer Storage and Recovery of Potable Water

2011 ◽  
Vol 45 (16) ◽  
pp. 6924-6931 ◽  
Author(s):  
Ilka Wallis ◽  
Henning Prommer ◽  
Thomas Pichler ◽  
Vincent Post ◽  
Stuart B. Norton ◽  
...  
Keyword(s):  
Reactive Transport ◽  
Potable Water ◽  
Transport Model ◽  
Aquifer Storage And Recovery ◽  
Aquifer Storage ◽  
Reactive Transport Model ◽  
Arsenic Mobility

scholarly journals Arsenic mobilization in the piedmont area of the Hetao basin: an insight from a reactive transport model

2019 ◽  
Vol 98 ◽  
pp. 05008
Author(s):  
Zhipeng Gao ◽  
Huaming Guo ◽  
Di Zhang ◽  
Bo Zhao
Keyword(s):  
Reactive Transport ◽  
Transport Model ◽  
Alluvial Fan ◽  
Geochemical Processes ◽  
Oxide Reduction ◽  
Reactive Transport Model ◽  
Model Flow ◽  
Adsorption Processes ◽  
As Adsorption ◽  
Siderite Precipitation

Groundwater showed a trend from oxic-suboxic conditions in the alluvial fan to anoxic conditions in the flat plain in the Hetao basin, with increases in As, Fe2+, NH4+, alkalinity and pH, and decreases in Eh and NO3-. A 1D reactive transport model was constructed using a model flow column by PHREEQC to quantitatively interpret geochemical processes related to As mobilization in a 5000 m-long hydrogeological unit. Results indicated that groundwater As concentration was mostly controlled by Fe(III) oxide reduction and As adsorption processes. Observed Fe2+ was the combination of Fe(III) oxide reduction and mackinawite/siderite precipitation. Increasing alkalinity was the result of oxidation of organic carbon, rather than the dissolution of carbonates.

scholarly journals Reactive Transport Model of Sulfur Cycling as Impacted by Perchlorate and Nitrate Treatments

2016 ◽  
Vol 50 (13) ◽  
pp. 7010-7018 ◽  
Author(s):  
Yiwei Cheng ◽  
Christopher G. Hubbard ◽  
Li Li ◽  
Nicholas Bouskill ◽  
Sergi Molins ◽  
...  
Keyword(s):  
Reactive Transport ◽  
Transport Model ◽  
Sulfur Cycling ◽  
Reactive Transport Model
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